| Company | Timeline | Status | |
| Andrew Thom (Joinery) Limited Director • Estimator | 30 Dec 1988←4 Months→30 Apr 1989 | Dissolved | |
| RRS Contracts Ltd Director • Estimator | 30 Dec 1988←4 Months→30 Apr 1989 | Dissolved | |
| Robert Y. Ritchie & Co. Limited Director • Estimator | 28 Dec 1988←4 Months→30 Apr 1989 | Dissolved | |
